I didn't make these, but I thought I'd share them anyway. The top 6 are red obsidian, the bottom 5 are black, and the 2 off to the bottom right are chert. All knapped by a friend of my Father's. He's a retired fellow who spends the winters in Arizona. Most are 2-2.5" long, and 1" wide, with weights from 70-135 grains. Should make some awesome arrows. I hope to fling some of these at deer this fall.
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